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Microchip has launched a family of dsPIC® digital signal controller (DSC)-based integrated motor drivers which save space and increase efficiency in motor-control systems for space-constrained applications. The drivers are suitable for use with a brushless dc (BLDC) or permanent magnet synchronous (PMSM) motor.
The new dsPIC33CDVxxx devices incorporate a dsPIC33 digital signal controller (DSC), a three-phase 12 V/0.5 A MOSFET gate driver, and an optional LIN or CAN FD transceiver into a single package. This integration reduces component count in motor-control system designs, enabling designers to create smaller PCBs and to simplify their board designs.
The dsPIC33CDVxxx drivers operate from a single power supply at up to 29 V. An internal 3.3 V LDO regulator powers the dsPIC DSC, eliminating the need for an external LDO to supply the device.
Operating at frequencies between 70 MHz and 100 MHz, the dsPIC DSC provides high performance, and supports efficient implementations of field-oriented control (FOC) and other motor-control algorithms.
Part Number: EV14E50A
The dsPIC33CDV64MC106 Motor Control Development Board from Microchip demonstrates the features of the dsPIC33CDV64MC106, an integrated motor driver which combines a digital signal controller (DSC) and three-phase MOSFET gate driver in a single package. The dsPIC33CDV64MC106’s DSC includes high-speed PWM outputs, op amps and advanced analog circuitry.
This board may be used to drive a low-voltage three-phase permanent magnet synchronous motor (PMSM) or brushless dc (BLDC) motor. The board is supplied with a program for running a dual-shunt field-oriented control (FOC) scheme with PLL estimator, using a Hurst BLDC motor for an out-of-the-box demonstration.
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